Filling-feeler mechanism for looms



Jan. 27, 1931. J. NORTHROP 1,790,018

FI-lfiLING FEELER MECHANISM FOR LOOMS Filed Feb. 15. 1929 Patented Jan. 2 1931 OFFI E-ff onas nonrnnonor nornnann, MA ACHUSETTS, AssIGNonmo STANDARD, Looms,-v INQLOEVSPARTANBUBG, soUrnoAnoLmA, A CORPORATION or son'rn CAROLINA.

' L g IILLING-EEELEB ECHANISM me Looms Application filed February 13,1929; semi No. 3323546.

The-present invention relates to filling feeler mechanisms for looms. *The'objeCtofthe present invention'is to providea feelermechanism of small size and 3 of simple and inexpensive construction which is highlysensitiveand which will notca'use appreciable wear on the yarn. To this end, .thepresentinvention consistsof the filling 'feeler' {mechanism hereinafter described and 10 particularly defined in the claims. a Inthe-accompanying drawingsyFigLl is a perspe'ctive view of the preferred form of mechanismof the present invention-;'Fig 2 is a plan view of the feelerassembly with '15 the'cover removed; Fig. 318' a plan-view of the: feeler showing'the feeler engaged by'a. supply of filling; Fig, 4 is a plan view of the 'feelershown in engagement with a nearly exhttusted bobbin; Fig. 5 is a section 'on line 2o 5- -5 ofFig. 2,; and Flg. 6 is asectional' detail View being taken-on the line 6-6of- Fig. 1. The illustrated embodiment of the invention comprises the body 8 of the 'feeler, sup; ported as'usual ona' bracket 10'." The feeler g -mech'anismis enclosed by the body 8 and a cover or cap 12;; The feeler comprises a rearwardl extending wire 14 having the triangular filling feeling tip or engag nghead a '16'p'rovided on'its rear face-with notches 18.

so The body is recessed at 19 to provide a space in which the feeler is free to slide. The ifeele'r is formed internally of thebody with V a right angle portion 20 which at its end 21 is eturnedfdown to form a pivotal mounting for '86 the feelerin-the sliding block 22. v The-block 22 has a depending guide projection'24flwhich slides in; a longitudinal slot 26 of' the'body. gTheblock-is extendedtoward the feel'e'r,--that is,'-t'o'ward theleiit as shown inthe drawings,

" to provide a circular spring abu'tm'ent' 28 which is transversely slotted to receive the 'portionj 20 of 'the feeler; Extending; for- Wardlyfrom theiabutment 28 are a ipairiof :tapered projections 30 adapted to: embrace $1 the 'feeler and to maintain the latter in proper position when it is permitted to turn on the pivot 21. Thecircular spring'abutment28 is freeto slide in a longitudinal circular recess 1 formed by a groove32 of the bodyand a similarly formedregistering groove seer the cover! The abutment is preferably maintained out oi -frictional contact with the walls of the circular recess, the block being supported at its lefthand end by means of a pro jection 84 which slides on the portion19ot' I the body adjacent to the groove 32. The circular recess accommodates a compression spring 36 which engages at one end the forward wall 38, and at the other end the transverse portion 20 of the feeler and'the abutment" 28. The spring is preferablytapered toward the forward end of the body inorder that there maybe practically no opportunity for any of the'coils of the spring to engage frictionally with the adjacent surfaces of the body and cover, r Asshown in Fig; 2, the recess 19 of the body in'which the teeler works forms 2 a shoulder 42 which serves to position the feeler and prevent wobbling thereof ,on a normal movement.- As "shown 3 in Fig. 3, when the feeler is engaged by a.working 'supply offfilling on the bobbin; the feelerlis. pushed straight forward, being 'prevented i 7 from slipping by the engagement of the yarn with the notches 18. The block 22 slides for 'wardly against the compression ofthe spring V36.- "Wobblingof the feelerwith consequent on" the' pivot, the slipping tendency. being suflicient to overcome thepressurei ofthe 0V I spring on the transverse portion 20 of the 5 ward the small endifor the reason that the feeler may then be mounted to engage the filling farther from thebutt. It is an advantage to feel of the filling as far from the butt as possible," in order that the filling originally subjected to the feeling action may run ofi as early as possible, thus presenting fresh yarn to the feeler. Thus a better distribution of wear on the filling is obtained.

The side slipping motion of the feeler is transmitted to the change mechanism in the following manner The body provided with a transverse slot 16 and the cap is provided with a registering, slot 48, both of which are arranged to. accommodate a derod is provided with aihook end -54'to lie under the feeler. The other end of the rod hooks into a pivoted latch 56 which vis mounted on a bracket 58 projecting from the horizontal actuator 60. The actuator is con.- nected in the usualmannerwith the change mechanism. The latch 56, as shown in Figs. 1 and 6, is formed with an integral pin or stud ,62 adapted to be received in a corresponding hole of the bracket 58. The pin 62 has a projecting tail64 which may be passed through a similarlyformed opening 66 to permit attachment or removal of the latch without the necessity for using cotter pins or other securing expedients. The latch has a striking portion 68 the end of which moves through a vertical opening 70 in the actuator 60. The latch normally lies below the path of movement of the cam follower 72 which is oscillated in the usual manner once for every two beatsof the'lay. The cam follower normally passes through a vertical opening 74 in the bracket 58. 'When the feeler slips, however, the rod 52 pulls the latch up into the path of the cam follower which then pushes the actuator forwardly to in'itiatethe operation of the bobbin transfer mechanism in any suitable manner. 1 The rod-52is formed with a bend 76 immediately above the feeler. The effective length of the'rod between; the feeler andthe latch, and hencethe extent of'movement of the latch as Well as the sensitivity, of the feeler may be "adjusted by varying the angle of the bend. Thelbend lies in a horizontal plane. tage over adjustable rods in whi'ch the folds are in a vertical plane, becauseadjustment of the latter almost invariably causes canting 230 of one of the portions of the rod atone side ofthe bend, thus necessitating a further adjustment. f

The feeler of the; present invention come mends itselfibecause of its small frictional resistances, which conduce to sensitive action pending portion 50 of' aip'ullrod 52 The This construction" offers an advanand prevent undue wear on the filling;

Transverse wobbling of the feeler during a feeling movement is prevented both by the guiding of the block 22 in the slot26 and by the depending pivot end 21 of the feeler. Moreover, the pivot 21 maintains the feeler always in a horizontal plane, thus preventing vertical vibration which might bring about excessive wear on the filling.

Having thus describedthe invention, what is claimed is; n i

1.; A filling feeler having, in combination, a body, a slip ing feeler extending rearwardly from the ody and having a transverse portion within the body, a block adaptedtoslide longitudinally withinthe body, the end of the transverse portion of the feeler being pivoted in the block, said body having a longitudinal spring recess, a spring engaging abutment for the block and having provisionfor engagement with the transverse portion of, the feeler, and a compression spring engaging with the abutment to press theblock and, the feeler rearwardly; I a 1 2. A filling feeler mechanismfor' looms having, in combination, a body, a slippingfeeler extending rearwardly. from the body and having a transverse portion vwithin the body, a block adapted to slide longitudinally within the body, theend otthetransverse portion of the feeler being pivoted in the block, saidbody having a longitudinal spring recess, aspring engaging abutment for the block and having provision for engagement with the transverse portion of the feeler, and

mechanism for looms a compression spring engaging with the'abut the body a ;.transverse portion extending across the spring recess, a block adapted for longitudinal sliding movement inithe body 7 and providedwith a spring abutment invthe ;spring recesses, the transverse portion of the feeler; engaging withthe spring abutment and being pivoted in the block, and-a-compression ofthe-body and the spring abutment to press thefeeler rearwardly.- it i gspring positioned between the forward end I fillingfeeler mechanism V -having, incombination, a body and a cover provided I with spring recesses, aslipping feelerhaving 111 the body "a transverse portion extending registering longitudinal across the spring recess, ablock adapted for longitudinal sliding movement inthe body and provided with a springabutment'in the spring recesses, the transverse portion of the 7 s feeler engaging with the spring abutment and being pivoted in the block, and-a compression spring positioned between the forward end of the body and the spring abutment to press the feeler rearwardly, the abutment belng provided with forwardly extending projections to embrace and retain the feeler on a slipping movement.

In testimony whereof I have, signed my name to this specification. 7;

.JONAS NORTHROP. 

